/*
 *  Copyright 2009 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.codegen.mybatis3.javamapper.elements;

import static org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities.getRenamedColumnNameForResultMap;
import static org.mybatis.generator.internal.util.StringUtility.stringHasValue;

import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.java.Interface;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.codegen.AbstractGenerator;
import org.mybatis.generator.config.GeneratedKey;

/**
 * 
 * @author Jeff Butler
 */
public abstract class AbstractJavaMapperMethodGenerator extends AbstractGenerator {
	public abstract void addInterfaceElements(Interface interfaze);

	public AbstractJavaMapperMethodGenerator() {
		super();
	}

	protected String getResultAnnotation(Interface interfaze, IntrospectedColumn introspectedColumn, boolean idColumn,
			boolean constructorBased) {
		StringBuilder sb = new StringBuilder();
		if (constructorBased) {
			interfaze.addImportedType(introspectedColumn.getFullyQualifiedJavaType());
			sb.append("@Arg(column=\""); //$NON-NLS-1$
			sb.append(getRenamedColumnNameForResultMap(introspectedColumn));
			sb.append("\", javaType="); //$NON-NLS-1$
			sb.append(introspectedColumn.getFullyQualifiedJavaType().getShortName());
			sb.append(".class"); //$NON-NLS-1$
		} else {
			sb.append("@Result(column=\""); //$NON-NLS-1$
			sb.append(getRenamedColumnNameForResultMap(introspectedColumn));
			sb.append("\", property=\""); //$NON-NLS-1$
			sb.append(introspectedColumn.getJavaProperty());
			sb.append('\"');
		}

		if (stringHasValue(introspectedColumn.getTypeHandler())) {
			FullyQualifiedJavaType fqjt = new FullyQualifiedJavaType(introspectedColumn.getTypeHandler());
			interfaze.addImportedType(fqjt);
			sb.append(", typeHandler="); //$NON-NLS-1$
			sb.append(fqjt.getShortName());
			sb.append(".class"); //$NON-NLS-1$
		}

		sb.append(", jdbcType=JdbcType."); //$NON-NLS-1$
		sb.append(introspectedColumn.getJdbcTypeName());
		if (idColumn) {
			sb.append(", id=true"); //$NON-NLS-1$
		}
		sb.append(')');

		return sb.toString();
	}

	protected void addGeneratedKeyAnnotation(Interface interfaze, Method method, GeneratedKey gk) {
		StringBuilder sb = new StringBuilder();
		IntrospectedColumn introspectedColumn = introspectedTable.getColumn(gk.getColumn());
		if (introspectedColumn != null) {
			if (gk.isJdbcStandard()) {
				interfaze.addImportedType(new FullyQualifiedJavaType("org.apache.ibatis.annotations.Options")); //$NON-NLS-1$
				sb.append("@Options(useGeneratedKeys=true,keyProperty=\""); //$NON-NLS-1$
				sb.append(introspectedColumn.getJavaProperty());
				sb.append("\")"); //$NON-NLS-1$
				method.addAnnotation(sb.toString());
			} else {
				interfaze.addImportedType(new FullyQualifiedJavaType("org.apache.ibatis.annotations.SelectKey")); //$NON-NLS-1$
				FullyQualifiedJavaType fqjt = introspectedColumn.getFullyQualifiedJavaType();
				interfaze.addImportedType(fqjt);
				sb.append("@SelectKey(statement=\""); //$NON-NLS-1$
				sb.append(gk.getRuntimeSqlStatement());
				sb.append("\", keyProperty=\""); //$NON-NLS-1$
				sb.append(introspectedColumn.getJavaProperty());
				sb.append("\", before="); //$NON-NLS-1$
				sb.append(gk.isIdentity() ? "false" : "true"); //$NON-NLS-1$ //$NON-NLS-2$
				sb.append(", resultType="); //$NON-NLS-1$
				sb.append(fqjt.getShortName());
				sb.append(".class)"); //$NON-NLS-1$
				method.addAnnotation(sb.toString());
			}
		}
	}
}
